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Repair tips

Electronic appliance repair tips database - TV (LCD,TFT,Plasma,Digital), Monitor, VCR, DVD recorder and player, Digital camera, Audio equipment, Microwave ovens, Phone systems, Computer repair

MakeModelProblemSolutionDate
Found: 626
Bush2867NTX 11AK19No line driveR866 0R33 in series with 14v supply o/c (not shown on cct diag)14-09-04
Bush2867NTX 11AK19Pic takes long time to appear - quicker if A1 adjustedCheck C608 10µ 250v reservoir cap for RGB stages by edge near LOPTx14-09-04

Bush2868 AK19Tripping200v line overloaded - TDA6107Q vid o/p chip on crt base14-09-04
Bush28688NTXChild Lock removalIn Features menu make sure that Program & TV locks are OFF. From the features Menu select lock option. Put in Code 736 (or try 734) on every channel that's locked (Even if it's 100 channels!)14-09-04
Bush2868NTX aft scan coil plug burn upL604 (should measure 2R7)14-09-04
Bush2868NTXHum bar third way down screenReposition degaussing coils14-09-04
Bush2868NTXSnowy raster, reduced width - won't access service mode, won't tune & locks up if pic menu enteredEEPROM replaced - part no. AB30001610 from CPC14-09-04
Bush2868NTXSt/by onlyFaulty EEPROM was the cause14-09-04
Bush2868NTX 11AK08Child Lock removaluse default pin code 734.14-09-04
Bush2868NTX 11AK12Child Lock removalDis pin 5 of EEPROM, sw set on, go to menu & set up any new pincode you like (do not forget to memorise it). While set is still on, re-connect pin 5 of EEPROM & press STORE on R/C. Now sw set off, resolder back the EEPROM and new pin is the one what you just entered.14-09-04
Bush2868NTX 11AK19Child Lock removalgo to the menu and toggle the child lock between on/off14-09-04
Bush2868NTX 11AK19DeadR806 22k o/c also R825 2M2 o/c14-09-04
Bush2868NTX 11AK19Dead with LOPTr s/cCheck conns to scan coil plug - if overheated, wire directly14-09-04
Bush2868NTX 11AK19E/W correction faultyQ683 FET BUK444 faulty14-09-04
Bush2868NTX 11AK19Entering service modeSelect "Install" then key in "4, 7, 2 & 5" via hset14-09-04
Bush2868NTX 11AK19No pic - sound ok - pic will appear briefly when adj A1C604 47nF 63V s/c in beam current14-09-04
Bush2868NTX 11AK19-5E/W faultyC630 470nF14-09-04
Bush2868NTX 11AK19-5No tuning - pic settings wrongReplace with blank eeprom & set up with hex code14-09-04
Bush2868NTX 11AK19-5Txt absent apart from "100"Replace multi micro/text chip SDA5255-A047 available from cHS14-09-04
Bush2868NTX 11AK20Child Lock removalpress P+ and P- on front 5 times14-09-04
Bush286NTXChild lock removal - unable to tune any chanCheck all chans for white key symbol - if present no tuning will be possible; hold child lock button on r/c until symbol goes.14-09-04
Bush2871NTXDead with 2.5A mains fuse F801 2.5A blownMains filter choke TR801 excessive warm - C804 220mfd 450v o/c14-09-04

Bush2871NTX 11AK19TrippingCheck diodes D814/5/6 on sec psu for s/c UF540214-09-04
Bush2871NTX 11AK19Tripping - LOPTr BU2508AF s/cCaused by scan coil plug on pcb arcing internally14-09-04
Bush2871NTX 11AK19Tuning only poss on low chansC504 sm leaky14-09-04
Bush2871NTX 11AK19Width fault - coil L604 faulty - part nopart number 30002031 is available from SEME at 93p14-09-04
Bush2871NTX 11AK19Width fault & no E-W developed into s/c LOPTr & FOP chipcoils L604,  L602 , R629, C640 + LOPTr. FOP chip C629 0.43u & 2R714-09-04
Bush2871NTX 11AK19-P4No pic or OSD - sound presentTDA6108JF on the CRT base 14-09-04
Bush2872NTX 11AK19Dead with R806 22k start up res o/cDue to short on pin 1 of MC44604 IC802 chopper chip14-09-04
Bush2872NTX 11AK19Int width increase with E-W faultDry joint L60214-09-04
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